I recently bought a 36" dish to point 121 for getting Gemini and Teja tv. My installer wants $100 for install that dish. But i already have Dish 300 and Dish 500 installed in my apartment balcony. The only thing he has to do is replace the dish and point it to 121. I dont want to spend that much money for such a simple thing. Thats why i want to try by my own. Is there any directions for installation. This is my first trial. Thanks